1 files changed, 234 insertions, 0 deletions
diff --git a/sc/source/filter/ftools/fprogressbar.cxx b/sc/source/filter/ftools/fprogressbar.cxx
new file mode 100644
index 000000000..3b84e8492
--- /dev/null
+++ b/sc/source/filter/ftools/fprogressbar.cxx
@@ -0,0 +1,234 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <fprogressbar.hxx>
+#include <globstr.hrc>
+#include <scresid.hxx>
+#include <progress.hxx>
+#include <osl/diagnose.h>
+#include <tools/stream.hxx>
+
+#include <limits>
+
+ScfProgressBar::ScfProgressSegment::ScfProgressSegment( std::size_t nSize ) :
+    mnSize( nSize ),
+    mnPos( 0 )
+{
+}
+
+ScfProgressBar::ScfProgressSegment::~ScfProgressSegment()
+{
+}
+
+ScfProgressBar::ScfProgressBar( SfxObjectShell* pDocShell, const OUString& rText ) :
+    maText( rText )
+{
+    Init( pDocShell );
+}
+
+ScfProgressBar::ScfProgressBar(SfxObjectShell* pDocShell, TranslateId pResId)
+    : maText(ScResId(pResId))
+{
+    Init( pDocShell );
+}
+
+ScfProgressBar::ScfProgressBar( ScfProgressBar& rParProgress, ScfProgressSegment* pParSegment )
+{
+    Init( rParProgress.mpDocShell );
+    mpParentProgress = &rParProgress;
+    mpParentSegment = pParSegment;
+}
+
+ScfProgressBar::~ScfProgressBar()
+{
+}
+
+void ScfProgressBar::Init( SfxObjectShell* pDocShell )
+{
+    mpDocShell = pDocShell;
+    mpParentProgress = nullptr;
+    mpParentSegment = mpCurrSegment = nullptr;
+    mnTotalSize = mnTotalPos = mnUnitSize = mnNextUnitPos = 0;
+    mnSysProgressScale = 1;     // used to workaround the SfxProgress sal_uInt32 limit
+    mbInProgress = false;
+}
+
+ScfProgressBar::ScfProgressSegment* ScfProgressBar::GetSegment( sal_Int32 nSegment )
+{
+    if( nSegment < 0 )
+        return nullptr;
+    return maSegments.at( nSegment ).get();
+}
+
+void ScfProgressBar::SetCurrSegment( ScfProgressSegment* pSegment )
+{
+    if( mpCurrSegment == pSegment )
+        return;
+
+    mpCurrSegment = pSegment;
+
+    if( mpParentProgress && mpParentSegment )
+    {
+        mpParentProgress->SetCurrSegment( mpParentSegment );
+    }
+    else if( !mxSysProgress && (mnTotalSize > 0) )
+    {
+        // SfxProgress has a limit of sal_uInt32.
+        mnSysProgressScale = 1;
+        std::size_t nSysTotalSize = mnTotalSize;
+        while( nSysTotalSize > std::numeric_limits<sal_uInt32>::max() )
+        {
+            nSysTotalSize /= 2;
+            mnSysProgressScale *= 2;
+        }
+        mxSysProgress.reset( new ScProgress( mpDocShell, maText, nSysTotalSize, true ) );
+    }
+
+    if( !mbInProgress && mpCurrSegment && (mnTotalSize > 0) )
+    {
+        mnUnitSize = mnTotalSize / 256 + 1;   // at most 256 calls of system progress
+        mnNextUnitPos = 0;
+        mbInProgress = true;
+    }
+}
+
+void ScfProgressBar::IncreaseProgressBar( std::size_t nDelta )
+{
+    std::size_t nNewPos = mnTotalPos + nDelta;
+
+    // call back to parent progress bar
+    if( mpParentProgress && mpParentSegment )
+    {
+        // calculate new position of parent progress bar
+        std::size_t nParentPos = static_cast< std::size_t >(
+            static_cast< double >( nNewPos ) * mpParentSegment->mnSize / mnTotalSize );
+        mpParentProgress->ProgressAbs( nParentPos );
+    }
+    // modify system progress bar
+    else if( mxSysProgress )
+    {
+        if( nNewPos >= mnNextUnitPos )
+        {
+            mnNextUnitPos = nNewPos + mnUnitSize;
+            mxSysProgress->SetState( static_cast< sal_uLong >( nNewPos / mnSysProgressScale ) );
+        }
+    }
+    else
+    {
+        OSL_FAIL( "ScfProgressBar::IncreaseProgressBar - no progress bar found" );
+    }
+
+    mnTotalPos = nNewPos;
+}
+
+sal_Int32 ScfProgressBar::AddSegment( std::size_t nSize )
+{
+    OSL_ENSURE( !mbInProgress, "ScfProgressBar::AddSegment - already in progress mode" );
+    if( nSize == 0 )
+        return SCF_INV_SEGMENT;
+
+    maSegments.push_back( std::make_unique<ScfProgressSegment>( nSize ) );
+    mnTotalSize += nSize;
+    return static_cast< sal_Int32 >( maSegments.size() - 1 );
+}
+
+ScfProgressBar& ScfProgressBar::GetSegmentProgressBar( sal_Int32 nSegment )
+{
+    ScfProgressSegment* pSegment = GetSegment( nSegment );
+    OSL_ENSURE( !pSegment || (pSegment->mnPos == 0), "ScfProgressBar::GetSegmentProgressBar - segment already started" );
+    if( pSegment && (pSegment->mnPos == 0) )
+    {
+        if( !pSegment->mxProgress )
+            pSegment->mxProgress.reset( new ScfProgressBar( *this, pSegment ) );
+        return *pSegment->mxProgress;
+    }
+    return *this;
+}
+
+bool ScfProgressBar::IsFull() const
+{
+    OSL_ENSURE( mbInProgress && mpCurrSegment, "ScfProgressBar::IsFull - no segment started" );
+    return mpCurrSegment && (mpCurrSegment->mnPos >= mpCurrSegment->mnSize);
+}
+
+void ScfProgressBar::ActivateSegment( sal_Int32 nSegment )
+{
+    OSL_ENSURE( mnTotalSize > 0, "ScfProgressBar::ActivateSegment - progress range is zero" );
+    if( mnTotalSize > 0 )
+        SetCurrSegment( GetSegment( nSegment ) );
+}
+
+void ScfProgressBar::ProgressAbs( std::size_t nPos )
+{
+    OSL_ENSURE( mbInProgress && mpCurrSegment, "ScfProgressBar::ProgressAbs - no segment started" );
+    if( mpCurrSegment )
+    {
+        OSL_ENSURE( mpCurrSegment->mnPos <= nPos, "ScfProgressBar::ProgressAbs - delta pos < 0" );
+        OSL_ENSURE( nPos <= mpCurrSegment->mnSize, "ScfProgressBar::ProgressAbs - segment overflow" );
+        if( (mpCurrSegment->mnPos < nPos) && (nPos <= mpCurrSegment->mnSize) )
+        {
+            IncreaseProgressBar( nPos - mpCurrSegment->mnPos );
+            mpCurrSegment->mnPos = nPos;
+        }
+    }
+}
+
+void ScfProgressBar::Progress( std::size_t nDelta )
+{
+    ProgressAbs( mpCurrSegment ? (mpCurrSegment->mnPos + nDelta) : 0 );
+}
+
+ScfSimpleProgressBar::ScfSimpleProgressBar( std::size_t nSize, SfxObjectShell* pDocShell, const OUString& rText ) :
+    maProgress( pDocShell, rText )
+{
+    Init( nSize );
+}
+
+ScfSimpleProgressBar::ScfSimpleProgressBar(std::size_t nSize, SfxObjectShell* pDocShell, TranslateId pResId)
+    : maProgress(pDocShell, pResId)
+{
+    Init( nSize );
+}
+
+void ScfSimpleProgressBar::Init( std::size_t nSize )
+{
+    sal_Int32 nSegment = maProgress.AddSegment( nSize );
+    if( nSegment >= 0 )
+        maProgress.ActivateSegment( nSegment );
+}
+
+ScfStreamProgressBar::ScfStreamProgressBar( SvStream& rStrm, SfxObjectShell* pDocShell ) :
+    mrStrm( rStrm )
+{
+    Init( pDocShell, ScResId( STR_LOAD_DOC ) );
+}
+
+void ScfStreamProgressBar::Progress()
+{
+    mxProgress->ProgressAbs( mrStrm.Tell() );
+}
+
+void ScfStreamProgressBar::Init( SfxObjectShell* pDocShell, const OUString& rText )
+{
+    sal_uInt64 const nSize = mrStrm.TellEnd();
+    mxProgress.reset( new ScfSimpleProgressBar( nSize, pDocShell, rText ) );
+    Progress();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */